Permission denied error on Ubuntu firefox

[feefladder]

Describe the Bug

When finishing the test framework, a permission denied error is raised

Steps to Reproduce

1. clone this repo
2. wasm-pack test --firefox --headless
3. error shows at the end of tests

git clone [email protected]:rustwasm/wasm-bindgen.git
Cloning into 'wasm-bindgen'...
remote: Enumerating objects: 58841, done.
remote: Counting objects: 100% (3151/3151), done.
remote: Compressing objects: 100% (2288/2288), done.
remote: Total 58841 (delta 2858), reused 863 (delta 863), pack-reused 55690 (from 4)
Receiving objects: 100% (58841/58841), 27.98 MiB | 5.89 MiB/s, done.
Resolving deltas: 100% (42947/42947), done.
user@laptop:~/git$ cd wasm-bindgen/
 127 user@laptop:~/git/wasm-bindgen$ wasm-pack test --firefox --headless
[INFO]: 🎯  Checking for the Wasm target...
   Compiling proc-macro2 v1.0.93
   Compiling unicode-ident v1.0.16
   Compiling wasm-bindgen-shared v0.2.100 (/home/user/git/wasm-bindgen/crates/shared)
   Compiling bumpalo v3.17.0
   Compiling log v0.4.25
   Compiling rustversion v1.0.19
   Compiling wasm-bindgen v0.2.100 (/home/user/git/wasm-bindgen)
   Compiling once_cell v1.20.2
   Compiling cfg-if v1.0.0
   Compiling paste v1.0.15
   Compiling quote v1.0.38
   Compiling syn v2.0.98
   Compiling wasm-bindgen-backend v0.2.100 (/home/user/git/wasm-bindgen/crates/backend)
   Compiling wasm-bindgen-macro-support v0.2.100 (/home/user/git/wasm-bindgen/crates/macro-support)
   Compiling wasm-bindgen-test-macro v0.3.50 (/home/user/git/wasm-bindgen/crates/test-macro)
   Compiling serde_derive v1.0.217
   Compiling wasm-bindgen-macro v0.2.100 (/home/user/git/wasm-bindgen/crates/macro)
   Compiling js-sys v0.3.77 (/home/user/git/wasm-bindgen/crates/js-sys)
   Compiling wasm-bindgen-test-crate-a v0.0.0 (/home/user/git/wasm-bindgen/tests/crates/a)
   Compiling wasm-bindgen-test-crate-b v0.0.0 (/home/user/git/wasm-bindgen/tests/crates/b)
   Compiling wasm-bindgen-futures v0.4.50 (/home/user/git/wasm-bindgen/crates/futures)
   Compiling wasm-bindgen-test v0.3.50 (/home/user/git/wasm-bindgen/crates/test)
    Finished `dev` profile [unoptimized + debuginfo] target(s) in 1m 16s
[INFO]: ⬇️  Installing wasm-bindgen...
    Finished `test` profile [unoptimized + debuginfo] target(s) in 0.19s
     Running tests/headless/main.rs (target/wasm32-unknown-unknown/debug/deps/headless-9bc415b36c5915b9.wasm)
                                                  
Running headless tests in Firefox on `http://127.0.0.1:45113/`
Try find `webdriver.json` for configure browser's capabilities:
Not found
running 10 tests                                  
test externref_heap_live_count::test_externref_heap_live_count ... ok
test modules::test_get_five ... ok
test strings::string_roundtrip ... ok
test snippets::duplicate_inline_not_unified ... ok
test snippets::test_get_three ... ok
test snippets::stateful_deduplicated ... ok
test snippets::test_get_two ... ok
test closures_work ... ok
test can_log_html_strings ... ok
test works ... ok

test result: ok. 10 passed; 0 failed; 0 ignored; 0 filtered out; finished in 0.02s
thread 'main' panicked at crates/cli/src/bin/wasm-bindgen-test-runner/headless.rs:698:27:
called `Result::unwrap()` on an `Err` value: Os { code: 13, kind: PermissionDenied, message: "Permission denied" }
note: run with `RUST_BACKTRACE=1` environment variable to display a backtrace
error: test failed, to rerun pass `--test headless`
Error: Running Wasm tests with wasm-bindgen-test failed
Caused by: Running Wasm tests with wasm-bindgen-test failed
Caused by: failed to execute `cargo test`: exited with exit status: 101
  full command: cd "/home/user/git/wasm-bindgen" && CARGO_TARGET_WASM32_UNKNOWN_UNKNOWN_RUNNER="/home/user/.cache/.wasm-pack/wasm-bindgen-c59d5019a2b42393/wasm-bindgen-test-runner" GECKODRIVER="/snap/bin/geckodriver" WASM_BINDGEN_TEST_ONLY_WEB="1" "cargo" "test" "--target" "wasm32-unknown-unknown"
 1 user@laptop:~/git/wasm-bindgen$ 

Expected Behavior

graceful exit

Actual Behavior

thread 'main' panicked at crates/cli/src/bin/wasm-bindgen-test-runner/headless.rs:698:27:
called `Result::unwrap()` on an `Err` value: Os { code: 13, kind: PermissionDenied, message: "Permission denied" }
note: run with `RUST_BACKTRACE=1` environment variable to display a backtrace
error: test failed, to rerun pass `--test headless`
Error: Running Wasm tests with wasm-bindgen-test failed
Caused by: Running Wasm tests with wasm-bindgen-test failed
Caused by: failed to execute `cargo test`: exited with exit status: 101
  full command: cd "/home/user/git/wasm-bindgen" && CARGO_TARGET_WASM32_UNKNOWN_UNKNOWN_RUNNER="/home/user/.cache/.wasm-pack/wasm-bindgen-c59d5019a2b42393/wasm-bindgen-test-runner" GECKODRIVER="/snap/bin/geckodriver" WASM_BINDGEN_TEST_ONLY_WEB="1" "cargo" "test" "--target" "wasm32-unknown-unknown"
 1 user@laptop:~/git/wasm-bindgen$ 

Additional Context

Running on Xubuntu 24

``` neofetch `-/osyhddddhyso/-` .+yddddddddddddddddddy+. :yddddddddddddddddddddddddy: user@laptop -yddddddddddddddddddddhdddddddy- ----------- odddddddddddyshdddddddh`dddd+ydddo OS: Xubuntu 24.10 x86_64 `yddddddhshdd- ydddddd+`ddh.:dddddy` Host: HP ENVY x360 Convertible 15-bq0xx sddddddy /d. :dddddd-:dy`-ddddddds Kernel: 6.11.0-14-generic :ddddddds /+ .dddddd`yy`:ddddddddd: Uptime: 1 day, 1 hour, 53 mins sdddddddd` . .-:/+ssdyodddddddddds Packages: 2820 (dpkg), 9 (snap) ddddddddy `:ohddddddddd Shell: bash 5.2.32 dddddddd. +dddddddd Resolution: 1920x1080 sddddddy ydddddds DE: Xfce 4.18 :dddddd+ .oddddddd: WM: Xfwm4 sdddddo ./ydddddddds WM Theme: Default `yddddd. `:ohddddddddddy` Theme: Adwaita-dark [GTK2/3] oddddh/` `.:+shdddddddddddddo Icons: elementary-xfce-dark [GTK2/3] -ydddddhyssyhdddddddddddddddddy- Terminal: vscode :yddddddddddddddddddddddddy: CPU: AMD A12-9720P RADEON R7 4C+8G (4) @ 2.700GHz .+yddddddddddddddddddy+. GPU: AMD ATI Radeon R5/R6/R7 Graphics `-/osyhddddhyso/-` Memory: 13182MiB / 15456MiB ```